MuhammadLab
Networking

Networking resources and learning tools.

Networking resources and utilities for IP addressing, CIDR, subnetting, DNS, certificates, infrastructure, and network evidence basics.

Learning area

A focused collection for this topic.

These pages are grouped as a learning collection. More lecture notes, examples, and practical tools can be added without changing the page structure.

5

Available resources

Available resources

Start with these resources

This category combines current MuhammadLab pages that match the topic. More lecture guides and interactive tools can be added here as the lab grows.

Browser resource

IP Subnet Calculator — Network & Host Range

Calculate IPv4 network address, broadcast address, usable host range, subnet mask, wildcard mask, and host counts from CIDR input.

subnet calculatorip subnetcidr calculatornetwork calculatorhost range
Open resource
Browser resource

CIDR Calculator — IPv4 & IPv6 Prefix Explorer

Parse IPv4 and IPv6 CIDR notation to inspect network boundaries, address ranges, usable counts, and prefix behaviour for study or planning.

cidr calculatoripv4 cidripv6 cidrip range calculatorprefix length calculator
Open resource
Browser resource

X.509 Certificate Viewer — PEM Certificate Parser

Inspect PEM-encoded X.509 certificates: subject, issuer, validity dates, SANs, and fingerprint.

x509 certificate viewerpem certificate parserssl cert viewertls certificate
Open resource
Browser resource

DNS Record Formatter — Generate DNS Zone Records

Create and format A, AAAA, CNAME, MX, and TXT DNS records, then export a clean zone-style text file for teaching, labs, and infrastructure planning.

dns record formatterdns zonedns record generatorbind format dnsa record
Open resource
Browser resource

CSR Decoder — Certificate Signing Request Parser

Decode and inspect PEM-encoded Certificate Signing Requests to view subject details and public key info.

csr decodercertificate signing requestcsr parserdecode csr
Open resource